Figure 6
From: Photosensitization of a subcutaneous tumour by the natural anthraquinone parietin and blue light
Kinetics of PTN penetration through the skin overlying the tumour. After topical application of PTN (1.96 mg in DMSO) on the skin over the tumour, fluorescence spectra of the AQ were recorded at the skin surface at different time points utilizing an optic fiber coupled to a spectrofluorometer. The decrease of superficial fluorescence accounts for the penetration of the molecule to inner tissue. Controls treated with DMSO (vehicle) and a fluorescence spectrum of PTN in DMSO (PTN) are included. Representative spectra are shown.
